Riding bicycle from treasure island to san francisco?

I am moving to Treasure Island in San Francisco and all I ride is a bicycle. I will be working in the city and plan to spend most of my time in the city. I have heard that there is a bicycle carrier type deal that transports your bike from Oakland to San Francisco. I mean I am just looking for a website for the times and dates. Or if the new bride or old bridge you can now ride your bike on it or not?